Which of the following is an example of a palindromic DNA sequence?
A palindromic sequence is a sequence made up of nucleic acids within double helix of DNA and/or RNA that is the same when read from 5′ to 3′ on one strand and 5′ to 3′ on the other, complementary, strand. An example of a palindromic sequence is 5′-GGATCC-3′, which has a complementary strand, 3′-CCTAGG-5′.
What is palindrome sequence example?
For a nucleotide sequence to be considered as a palindrome, its complementary strand must read the same in the opposite direction . For example, the sequence 5′-CGATCG-3′ is considered a palindrome since its reverse complement 3′-GCTAGC-5′ reads the same. Palindromes can be exact or approximate.
What are palindromes give two examples in biology?
– A palindromic sequence is a nucleic acid sequence wherein reading in 5′ to 3′ direction is always the same on both strands in a double helix of DNA/RNA. – For example, 5′-GGATCC-3′.
What are the types of palindromic sequence?
There are two types.
- Palindromes that occur on opposite strands of the same section of DNA helix. 5′ GGCC 3′ 3′ CCGG 5′
- Inverted Repeats. In these cases, two different segments of the double helix read the same but in opposite directions. 5′ AGAACAnnnTGTTCT 3′
What is the importance of palindromic sequence?
The palindromic sequence has an important role in molecular biology, as the DNA sequence is double-stranded and by reading base pairs palindromes can be determined. Palindromic sequences are typically 3 to 5 bases in length. Importance of this sequence is that it reads the same in both directions.
What is a palindrome in DNA?
In DNA, palindromes are defined as a sequence of nucleotides that are followed by its complement sequence appearing in reverse order1.
What do you mean by palindromic sequence?
A palindromic sequence is a nucleic acid sequence in a double-stranded DNA or RNA molecule wherein reading in a certain direction (e.g. 5′ to 3′) on one strand matches the sequence reading in the opposite direction (e.g. 5′ to 3′) on the complementary strand.
What is the purpose of palindromic sequence?
The role of palindromic sequences called clustered regulatory interspaced short palindromic repeats (CRISPR) found in bacteria and archaea genome is basically to provide immunity against foreign genetic elements such as plasmids (Barrangou et al., 2007) and phages (Marraffini and Sontheimer, 2008).
What do you mean by palindromic DNA?
A palindromic sequence is a nucleic acid sequence on double-stranded DNA or RNA wherein reading 5′ to 3′ forward on one strand matches the sequence reading backward 5′ to 3′ on the complementary strand with which it forms a double helix.
Which is the correct description of a palindromic sequence?
Palindrome of DNA structure. A: Palindrome, B: Loop, C: Stem. A palindromic sequence is a nucleic acid sequence in a double-stranded DNA or RNA molecule wherein reading in a certain direction (e.g. 5′ to 3′) on one strand matches the sequence reading in the opposite direction (e.g. 5′ to 3′) on the complementary strand.
Which is restriction endonucleases recognize specific palindromic sequences?
Many restriction endonucleases (restriction enzymes) recognize specific palindromic sequences and cut them. The restriction enzyme EcoR1 recognizes the following palindromic sequence: 5′- G A A T T C -3′ 3′- C T T A A G -5′. The top strand reads 5′-GAATTC-3′, while the bottom strand reads 3′-CTTAAG-5′.
Is the palindromic sequence merged into inverted repeat?
It has been suggested that this article be merged into Inverted repeat. ( Discuss) Proposed since October 2020.
Why are the Y and X chromosomes arranged as palindromes?
Palindromic sequence. Recently, a research genome sequencing project discovered that large part of sequences on the Y and X chromosomes are arranged as palindromes. A palindrome structure allows the Y chromosome to repair itself by bending over at the middle if one side is damaged.